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8.Himpunanpenyelesaiandari pertidaksamaan
|1 − 2𝑥| ≥ |𝑥 − 2| adalah ….
a. {𝑥|𝑥 ≤ 1 atau 𝑥 ≥ 1}
b. {𝑥|𝑥 ≤ −1 atau 𝑥 ≥ 1}
c. {𝑥|𝑥 ≤ 1 atau 𝑥 ≤ 1}
d. {𝑥|𝑥 ≥ 1 atau 𝑥 ≥ 1}
e. {𝑥|𝑥 ≤ 1 atau 𝑥 ≥ −1}
9.Himpunanpenyelesaiandari
pertidaksamaan |2𝑥 − 3| ≤ |𝑥 + 4| adalah
….
a. {𝑥|
1
3
≤ 𝑥 ≤ 7}
b. {𝑥|
1
3
≤ 𝑥 ≤ −7}
c. {𝑥|−
1
3
≤ 𝑥 ≤ 7}
d. {𝑥|−
1
3
≤ 𝑥 ≤ −7}
e. {𝑥|
3
7
≤ 𝑥 ≤ −7}
10.Himpunanpenyelesaiandari
pertidaksamaan |
3−2𝑥
2+𝑥
| ≤ 4adalah….
a. {𝑥|𝑥 ≤
11
2
atau 𝑥 ≤ −
5
6
}
b. {𝑥|𝑥 ≥
11
2
atau 𝑥 ≤ −
5
6
}
c. {𝑥|𝑥 ≥
11
2
atau 𝑥 ≥ −
5
6
}
d. {𝑥|𝑥 ≤ −
11
2
atau 𝑥 ≥ −
5
6
}
e. {𝑥|𝑥 ≤ −
11
2
atau 𝑥 ≤
5
6
}
11. X, Y dan Z dari systempersamaan:
{
𝑥 + 𝑦 + 𝑧 = 4
2𝑥 + 2𝑦 − 𝑧 = 5
𝑥 − 𝑦 = 1
adalah…
a. −2, 1 dan −1
b. −2, 1 dan1
c. 2, −1 dan 1
d. 2, 1 dan −1
e. 2, 1 dan 1
12. Himpunanpenyelesaiandari system
persamaan: {
2𝑥 + 𝑦 + 𝑧 = 9
𝑥 + 2𝑦 − 𝑧 = 6
3𝑥 − 𝑦 + 𝑧 = 8
adalah….
a. {3,1, 2}
b. {3,2, 1}
c. {2,3, 1}
d. {2,1, 3}
e. {1,2, 3}
13.Himpunanpenyelesaiandari system
persamaan: {
𝑥 + 𝑦 + 𝑧 = 3
3𝑥 − 𝑦 + 2𝑧 = 4
𝑥 + 𝑦 − 𝑧 = 1
adalah…
a. {2,1, 1}
b. {1,2, 1}
c. {1,1, 2}
d. {1,1, 1}
e. {1,1, −1}
14. Diketahui systempersamaan
{
3𝑥 − 𝑦 + 4𝑧 = 8
5𝑥 + 𝑦 + 2𝑧 = 12
2𝑥 + 2𝑦 + 3𝑧 = 14
. Nilai 𝑥 + 𝑦 + 𝑧 =…
a. 4
b. 5
c. 6
d. 7
e. 8
15. Diketahui systempersamaan
{
𝑥 + 𝑦 + 𝑧 = 2
3𝑥 − 𝑦 + 2𝑧 = 4
2𝑥 + 3𝑦 + 𝑧 = 7
. Nilai 𝑥 .𝑦 . 𝑧 = ⋯
a. −6
b. −7
c. −8
d. −9
e. −10

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2

  • 1. 8.Himpunanpenyelesaiandari pertidaksamaan |1 − 2𝑥| ≥ |𝑥 − 2| adalah …. a. {𝑥|𝑥 ≤ 1 atau 𝑥 ≥ 1} b. {𝑥|𝑥 ≤ −1 atau 𝑥 ≥ 1} c. {𝑥|𝑥 ≤ 1 atau 𝑥 ≤ 1} d. {𝑥|𝑥 ≥ 1 atau 𝑥 ≥ 1} e. {𝑥|𝑥 ≤ 1 atau 𝑥 ≥ −1} 9.Himpunanpenyelesaiandari pertidaksamaan |2𝑥 − 3| ≤ |𝑥 + 4| adalah …. a. {𝑥| 1 3 ≤ 𝑥 ≤ 7} b. {𝑥| 1 3 ≤ 𝑥 ≤ −7} c. {𝑥|− 1 3 ≤ 𝑥 ≤ 7} d. {𝑥|− 1 3 ≤ 𝑥 ≤ −7} e. {𝑥| 3 7 ≤ 𝑥 ≤ −7} 10.Himpunanpenyelesaiandari pertidaksamaan | 3−2𝑥 2+𝑥 | ≤ 4adalah…. a. {𝑥|𝑥 ≤ 11 2 atau 𝑥 ≤ − 5 6 } b. {𝑥|𝑥 ≥ 11 2 atau 𝑥 ≤ − 5 6 } c. {𝑥|𝑥 ≥ 11 2 atau 𝑥 ≥ − 5 6 } d. {𝑥|𝑥 ≤ − 11 2 atau 𝑥 ≥ − 5 6 } e. {𝑥|𝑥 ≤ − 11 2 atau 𝑥 ≤ 5 6 } 11. X, Y dan Z dari systempersamaan: { 𝑥 + 𝑦 + 𝑧 = 4 2𝑥 + 2𝑦 − 𝑧 = 5 𝑥 − 𝑦 = 1 adalah… a. −2, 1 dan −1 b. −2, 1 dan1 c. 2, −1 dan 1 d. 2, 1 dan −1 e. 2, 1 dan 1 12. Himpunanpenyelesaiandari system persamaan: { 2𝑥 + 𝑦 + 𝑧 = 9 𝑥 + 2𝑦 − 𝑧 = 6 3𝑥 − 𝑦 + 𝑧 = 8 adalah…. a. {3,1, 2} b. {3,2, 1} c. {2,3, 1} d. {2,1, 3} e. {1,2, 3} 13.Himpunanpenyelesaiandari system persamaan: { 𝑥 + 𝑦 + 𝑧 = 3 3𝑥 − 𝑦 + 2𝑧 = 4 𝑥 + 𝑦 − 𝑧 = 1 adalah… a. {2,1, 1} b. {1,2, 1} c. {1,1, 2} d. {1,1, 1} e. {1,1, −1} 14. Diketahui systempersamaan { 3𝑥 − 𝑦 + 4𝑧 = 8 5𝑥 + 𝑦 + 2𝑧 = 12 2𝑥 + 2𝑦 + 3𝑧 = 14 . Nilai 𝑥 + 𝑦 + 𝑧 =… a. 4 b. 5 c. 6 d. 7 e. 8 15. Diketahui systempersamaan { 𝑥 + 𝑦 + 𝑧 = 2 3𝑥 − 𝑦 + 2𝑧 = 4 2𝑥 + 3𝑦 + 𝑧 = 7 . Nilai 𝑥 .𝑦 . 𝑧 = ⋯ a. −6 b. −7 c. −8 d. −9 e. −10